Ko Seok ‘HyuN’ was a Zerg progamer in Starcraft: Brood War, and was a member of team MBCGame HERO from 2005 to 2011. He is currently a member of Team ROCCAT.

His last result in the OnGameNet Starleague was an elimination in the first round of the 2011 Jin Air OSL, and he has an overall record of 84 wins and 110 losses in official Brood War matches.

Though HyuN was known as an online player for quite sometime, in late 2012, HyuN cemented himself as a legitimate tournament performer when he reached the Code S finals of the 2012 GSL Season 5 while simultaneously winning IGN Pro League Fight Club for 14 consecutive weeks.